Record Display for the EPA National Library Catalog


Main Title Dyestuff color removal by ionizing radiation and chemical oxidation /
Author Craft, T. F.,
Other Authors
Author Title of a Work
Eichholz, Geoffrey G.,
Publisher U.S. Environmental Protection Agency, Office of Research and Monitoring,
Year Published 1973
Report Number EPA-R2-73-048; EPA-12090-FZB
Stock Number PB-221 486
OCLC Number 01028001
Subjects Dyes and dyeing--Chemistry ; Dyes and dyeing--Waste disposal
Additional Subjects Textile industry ; Industrial waste treatment ; Dyes ; Decoloring ; Gamma irradiation ; Ionizing radiation ; Biochemical oxygen demand ; Oxidizers ; Chlorination ; Azo dyes ; Sulfur dyes ; Metallized dyes ; Anthraquinones ; Cost estimates ; Triphenylmethane dyes ; Water pollution control ; ORM
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA R2-73-048 Headquarters Library/Washington,DC 04/09/2012
EJBD  EPA R2-73-048 c.1 Headquarters Library/Washington,DC 01/13/2014
NTIS  PB-221 486 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation x, 118 pages : illustrations, figures ; 28 cm
The effects of a combined radiation-oxidation process on solutions of textile dyes have been studied. The combined treatment with gamma radiation and chlorine causes more decolorization than the effect of the two components when they are applied individually. Several chemical classes of dyes were tested, including anthraquinone, azo, metallized azo, sulfur, stilbene, and triphenylmethane dyes. At a concentration of 0.25 g/l the transmittance at the wave-length of maximum absorbance of dye solutions is greatly increased by treatment with a radiation dose of 60 kR plus 75 ppm chlorine. Non-optimized cost estimates indicate $0.31/1000 gal. for design treatment, with normal operating costs potentially lower. Although the major benefit from this treatment will be removal of color, some reduction of chemical oxygen demand will occur, and possibly some reduction in the biochemical oxygen demand. (Author)
"March 1973." "Project Officer: Edmond P. Lomasney, Region IV-EPA, Atlanta, Georgia." "Project 12090 FZB." Includes bibliographical references (pages 33-35).